Using data from the James Webb Space Telescope, astronomers traced how Milky Way–like galaxies formed and changed over time.

Gas cloud collisions during galaxy mergers compress interstellar material, triggering new star formation, as observed in interacting systems studied by NASA and reported by Universe Today.

To those unfamiliar with formation flying, flight within a wingspan’s distance of another airplane looks eerily similar to an imminent collision. And collisions in airplanes generally don’t end well.